\begin{tabular}{l*{4}{c}}
\hline
                 &\multicolumn{1}{c}{Share of foreign-}&\multicolumn{1}{c}{Share of foreign-}&\multicolumn{1}{c}{Share of co-}&\multicolumn{1}{c}{Share of co-}\\         &\multicolumn{1}{c}{born in firm}&\multicolumn{1}{c}{born in firm}&\multicolumn{1}{c}{nationals in firm}&\multicolumn{1}{c}{nationals in firm}\\ \hline  \emph{Second stage}\\
Enrollment  &       0.031   &       0.024   &       0.026   &       0.002   \\
            &     (0.036)   &     (0.036)   &     (0.044)   &     (0.036)   \\
\hline
Controls    &         Yes   &         Yes   &         Yes   &         Yes   \\
F-stat      &         205   &         188   &         205   &         188   \\
N           &        2059   &        1786   &        2059   &        1786   \\
Mean of Y   &        0.55   &        0.48   &        0.24   &        0.14   \\
\hline
\end{tabular}
